{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T03:48:39Z","timestamp":1789789719976,"version":"4.0.1"},"reference-count":52,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2024,1,8]],"date-time":"2024-01-08T00:00:00Z","timestamp":1704672000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Psychol."],"abstract":"<jats:sec><jats:title>Introduction<\/jats:title><jats:p>Quality of life (QoL) can be defined as the goodness of life, beyond simply absence of disease or functional impairments, self-rating scales of which capture valuable information beyond change in primary outcomes. This study (<jats:italic>n<\/jats:italic>\u2009=\u20093,384) validated the Brunnsviken Brief Quality of Life Inventory (BBQ) across divergent groups by evaluating its measurement invariance (MI). We hypothesized measurement invariance for the BBQ across age groups, genders, depression, and anxiety severity. Potential cutoff points for the BBQ were also explored.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>Confirmatory factor analysis (CFA) models were fit to sample data obtained from an ongoing study on transdiagnostic internet-based treatment modules. Parameters were successively constrained to assess configural, metric, scalar, and residual invariance factor structures across different groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The BBQ demonstrated MI at the metric level and partial MI at the scalar level across all these groups, which remained stable at the strict-residual level for all groups except for genders. These results remained stable after correcting for unbalanced group sizes for gender, clinical\u2013subclinical levels of depression, and clinical\u2013subclinical levels of anxiety. A cutoff point analysis revealed that a BBQ total scores below 39 was associated with notable psychopathology.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p>The BBQ is a reliable measure of QoL that is applicable for various divergent groups (e.g., vulnerable persons), and thus a viable instrument for use in healthcare and research with minimal aversive impact.<\/jats:p><jats:p><jats:bold>Clinical trial registration<\/jats:bold>: NCT05016843.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fpsyg.2023.1305682","type":"journal-article","created":{"date-parts":[[2024,1,8]],"date-time":"2024-01-08T12:46:19Z","timestamp":1704717979000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":7,"title":["Exploring cutoff points and measurement invariance of the Brunnsviken brief quality of life inventory"],"prefix":"10.3389","volume":"14","author":[{"given":"J\u00f3n Ingi","family":"Hlynsson","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philip","family":"Lindner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bushra","family":"Barri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Per","family":"Carlbring","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2024,1,8]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"221","DOI":"10.1016\/S0277-9536(96)00339-5","article-title":"Quality of life: a dynamic construct","volume":"45","author":"Allison","year":"1997","journal-title":"Soc. Sci. Med."},{"key":"ref2","volume-title":"Diagnostic and statistical manual of mental disorders","year":"2022"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"186","DOI":"10.1207\/s15328007sem1302_2","article-title":"On the performance of maximum likelihood versus means and variance adjusted weighted least squares estimation in CFA","volume":"13","author":"Beauducel","year":"2006","journal-title":"Struct. Equ. Model. Multidiscip. J."},{"key":"ref4","doi-asserted-by":"publisher","first-page":"21","DOI":"10.1023\/A:1006881931793","article-title":"Measuring quality of life","volume":"42","author":"Beckie","year":"1997","journal-title":"Soc. Indic. Res."},{"key":"ref5","doi-asserted-by":"publisher","first-page":"547","DOI":"10.1007\/BF00634750","article-title":"Quality of life bibliography and indexes: 1994 update","volume":"4","author":"Berzon","year":"1995","journal-title":"Qual. Life Res."},{"key":"ref6","unstructured":"Chapter 12 invariance testing\n            BikosL. H.\n          ReCentering Psych Stats: Psychometrics2022"},{"key":"ref7","doi-asserted-by":"publisher","first-page":"e21466","DOI":"10.2196\/21466","article-title":"Internet-based cognitive behavioral therapy for informal caregivers: randomized controlled pilot trial","volume":"23","author":"Biliunaite","year":"2021","journal-title":"J. Med. Internet Res."},{"key":"ref8","volume-title":"Measuring health: A review of quality of life measurement scale","author":"Bowling","year":"2005"},{"key":"ref9","doi-asserted-by":"publisher","first-page":"61","DOI":"10.1016\/j.genhosppsych.2021.01.002","article-title":"GAD-7, GAD-2, and GAD-mini: psychometric properties and norms of university students in the United States","volume":"69","author":"Byrd-Bredbenner","year":"2021","journal-title":"Gen. Hosp. Psychiatry"},{"key":"ref10","doi-asserted-by":"publisher","first-page":"183","DOI":"10.1080\/165060702321138573","article-title":"Is the internet-administered CIDI-SF equivalent to a clinician-administered SCID interview?","volume":"31","author":"Carlbring","year":"2002","journal-title":"Cogn. Behav. Ther."},{"key":"ref11","doi-asserted-by":"publisher","first-page":"1351","DOI":"10.1037\/apl0000815","article-title":"From alpha to omega and beyond! A look at the past, present, and (possible) future of psychometric soundness in the journal of applied psychology","volume":"105","author":"Cortina","year":"2020","journal-title":"J. Appl. Psychol."},{"key":"ref12","doi-asserted-by":"publisher","first-page":"71","DOI":"10.1207\/s15327752jpa4901_13","article-title":"The satisfaction with life scale","volume":"49","author":"Diener","year":"1985","journal-title":"J. Pers. Assess."},{"key":"ref13","doi-asserted-by":"publisher","first-page":"87","DOI":"10.1037\/cap0000063","article-title":"Findings all psychologists should know from the new science on subjective well-being","volume":"58","author":"Diener","year":"2017","journal-title":"Can. Psychol. Psychol. Can."},{"key":"ref14","first-page":"321","article-title":"Quality of life enjoyment and satisfaction questionnaire: a new measure","volume":"29","author":"Endicott","year":"1993","journal-title":"Psychopharmacol. Bull."},{"key":"ref15","unstructured":"semPlot: Path diagrams and visual analysis of various SEM packages\u2019 output\n            EpskampS\n          2022"},{"key":"ref16","doi-asserted-by":"publisher","first-page":"19","DOI":"10.1111\/j.1468-2850.1998.tb00132.x","article-title":"Quality of life therapy and assessment in health care","volume":"5","author":"Frisch","year":"1998","journal-title":"Clin. Psychol. Sci. Pract."},{"key":"ref17","doi-asserted-by":"publisher","first-page":"92","DOI":"10.1037\/1040-3590.4.1.92","article-title":"Clinical validation of the quality of life inventory: a measure of life satisfaction for use in treatment planning and outcome assessment","volume":"4","author":"Frisch","year":"1992","journal-title":"Psychol. Assess."},{"key":"ref18","doi-asserted-by":"publisher","first-page":"S78","DOI":"10.1097\/01.mlr.0000245454.12228.8f","article-title":"Do self-report instruments allow meaningful comparisons across diverse population groups? Testing measurement invariance using the confirmatory factor analysis framework","volume":"44","author":"Gregorich","year":"2006","journal-title":"Med. Care"},{"key":"ref19","doi-asserted-by":"publisher","first-page":"217","DOI":"10.1002\/hec.4730020305","article-title":"The rand 36-item health survey 1.0","volume":"2","author":"Hays","year":"1993","journal-title":"Health Econ."},{"key":"ref20","doi-asserted-by":"publisher","first-page":"12022","DOI":"10.3390\/ijerph182212022","article-title":"Anxiety, depression and quality of life\u2014a systematic review of evidence from longitudinal observational studies","volume":"18","author":"Hohls","year":"2021","journal-title":"Int. J. Environ. Res. Public Health"},{"key":"ref21","doi-asserted-by":"publisher","first-page":"1909","DOI":"10.1007\/s11482-021-10016-w","article-title":"Are all life domains created equal? Domain importance weighting in subjective well-being research","volume":"17","author":"Hsieh","year":"2022","journal-title":"Appl. Res. Qual. Life"},{"key":"ref22","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1080\/10705519909540118","article-title":"Cutoff criteria for fit indexes in covariance structure analysis: conventional criteria versus new alternatives","volume":"6","author":"Hu","year":"1999","journal-title":"Struct. Equ. Model. Multidiscip. J."},{"key":"ref23","doi-asserted-by":"publisher","first-page":"813","DOI":"10.1080\/07448481.2019.1709474","article-title":"Anxiety and depression in a sample of UK college students: a study of prevalence, comorbidity, and quality of life","volume":"69","author":"Jenkins","year":"2021","journal-title":"J. Am. Coll. Health J ACH"},{"key":"ref24","doi-asserted-by":"publisher","first-page":"1713","DOI":"10.3389\/fpsyg.2019.01713","article-title":"Psychometric properties of the general anxiety disorder 7-item (GAD-7) scale in a heterogeneous psychiatric sample","volume":"10","author":"Johnson","year":"2019","journal-title":"Front. Psychol."},{"key":"ref25","doi-asserted-by":"publisher","first-page":"893","DOI":"10.1007\/s11205-015-0903-z","article-title":"The harmony in life scale complements the satisfaction with life scale: expanding the conceptualization of the cognitive component of subjective well-being","volume":"126","author":"Kjell","year":"2016","journal-title":"Soc. Indic. Res."},{"key":"ref26","volume-title":"Principles and practice of structural equation modeling","author":"Kline","year":"2023"},{"key":"ref27","doi-asserted-by":"publisher","first-page":"551","DOI":"10.1016\/j.genhosppsych.2013.04.006","article-title":"Standardization of the depression screener patient health questionnaire (PHQ-9) in the general population","volume":"35","author":"Kocalevent","year":"2013","journal-title":"Gen. Hosp. Psychiatry"},{"key":"ref28","doi-asserted-by":"publisher","first-page":"606","DOI":"10.1046\/j.1525-1497.2001.016009606.x","article-title":"The PHQ-9: validity of a brief depression severity measure","volume":"16","author":"Kroenke","year":"2001","journal-title":"J. Gen. Intern. Med."},{"key":"ref29","doi-asserted-by":"publisher","first-page":"345","DOI":"10.1016\/j.genhosppsych.2010.03.006","article-title":"The patient health questionnaire somatic, anxiety, and depressive symptom scales: a systematic review","volume":"32","author":"Kroenke","year":"2010","journal-title":"Gen. Hosp. Psychiatry"},{"key":"ref30","doi-asserted-by":"publisher","first-page":"241","DOI":"10.1037\/a0015309","article-title":"Public health significance of neuroticism","volume":"64","author":"Lahey","year":"2009","journal-title":"Am. Psychol."},{"key":"ref31","doi-asserted-by":"publisher","first-page":"182","DOI":"10.1080\/16506073.2016.1143526","article-title":"The Brunnsviken brief quality of life scale (BBQ): development and psychometric evaluation","volume":"45","author":"Lindner","year":"2016","journal-title":"Cogn. Behav. Ther."},{"key":"ref32","doi-asserted-by":"publisher","first-page":"266","DOI":"10.1097\/MLR.0b013e318160d093","article-title":"Validation and standardization of the generalized anxiety disorder screener (GAD-7) in the general population","volume":"46","author":"L\u00f6we","year":"2008","journal-title":"Med. Care"},{"key":"ref33","doi-asserted-by":"publisher","first-page":"e32824","DOI":"10.2196\/32824","article-title":"The current state and validity of digital assessment tools for psychiatry: systematic review","volume":"9","author":"Martin-Key","year":"2022","journal-title":"JMIR Ment. Health"},{"key":"ref34","doi-asserted-by":"publisher","first-page":"370","DOI":"10.1037\/h0054346","article-title":"A theory of human motivation","volume":"50","author":"Maslow","year":"1943","journal-title":"Psychol. Rev."},{"key":"ref35","doi-asserted-by":"publisher","first-page":"253","DOI":"10.2298\/VSP211220037P","article-title":"The Serbian version of the Brunnsviken brief quality of life scale: reliability, validity, and psychometric features among the population of high school students","volume":"80","author":"Panti\u0107","year":"2023","journal-title":"Vojnosanit. Pregl."},{"key":"ref36","first-page":"e99","article-title":"A brief history of the quality of life: its use in medicine and in philosophy","volume":"162","author":"Pennacchini","year":"2011","journal-title":"Clin. Ter."},{"key":"ref37","doi-asserted-by":"publisher","first-page":"71","DOI":"10.1016\/j.dr.2016.06.004","article-title":"Measurement invariance conventions and reporting: the state of the art and future directions for psychological research","volume":"41","author":"Putnick","year":"2016","journal-title":"Dev. Rev."},{"key":"ref38","volume-title":"R: A language and environment for statistical computing","year":"2021"},{"key":"ref39","doi-asserted-by":"publisher","first-page":"77","DOI":"10.1186\/1471-2105-12-77","article-title":"pROC: an open-source package for R and S+ to analyze and compare ROC curves","volume":"12","author":"Robin","year":"2011","journal-title":"BMC Bioinformatics"},{"key":"ref40","doi-asserted-by":"publisher","first-page":"1","DOI":"10.18637\/jss.v048.i02","article-title":"Lavaan: an R package for structural equation modeling","volume":"48","author":"Rosseel","year":"2012","journal-title":"J. Stat. Softw."},{"key":"ref41","volume-title":"Neuroticism: A new framework for emotional disorders and their treatment","author":"Sauer-Zavala","year":"2021"},{"key":"ref42","doi-asserted-by":"publisher","first-page":"89","DOI":"10.1097\/00004850-199606003-00015","article-title":"The measurement of disability","volume":"11","author":"Sheehan","year":"1996","journal-title":"Int. Clin. Psychopharmacol."},{"key":"ref43","doi-asserted-by":"publisher","first-page":"297","DOI":"10.2190\/49XW-DC4U-YT00-KDB7","article-title":"Relations between health-related quality of life and well-being: the gerontologist\u2019s new clothes?","volume":"50","author":"Spiro","year":"2000","journal-title":"Int. J. Aging Hum. Dev."},{"key":"ref44","doi-asserted-by":"publisher","first-page":"1092","DOI":"10.1001\/archinte.166.10.1092","article-title":"A brief measure for assessing generalized anxiety disorder: the GAD-7","volume":"166","author":"Spitzer","year":"2006","journal-title":"Arch. Intern. Med."},{"key":"ref45","doi-asserted-by":"publisher","first-page":"213","DOI":"10.1348\/135910709X457423","article-title":"Gender and self-reported mental health problems: predictors of help-seeking from a general practitioner","volume":"15","author":"Tedstone Doherty","year":"2010","journal-title":"Br. J. Health Psychol."},{"key":"ref46","doi-asserted-by":"publisher","first-page":"486","DOI":"10.1080\/17405629.2012.686740","article-title":"A checklist for testing measurement invariance","volume":"9","author":"van de Schoot","year":"2012","journal-title":"Eur. J. Dev. Psychol."},{"key":"ref47","doi-asserted-by":"publisher","first-page":"107","DOI":"10.1016\/j.invent.2016.09.006","article-title":"Features and functionality of the Iterapi platform for internet-based psychological treatment","volume":"6","author":"Vlaescu","year":"2016","journal-title":"Internet Interv."},{"key":"ref48","doi-asserted-by":"publisher","first-page":"e20","DOI":"10.1093\/hsw\/hlv089","article-title":"Gender and attitudes about mental health help seeking: results from national data","volume":"41","author":"Wendt","year":"2016","journal-title":"Health Soc. Work"},{"key":"ref49","doi-asserted-by":"publisher","first-page":"24","DOI":"10.1080\/00207411.1994.11449286","article-title":"Development of the WHOQOL: rationale and current status","volume":"23","year":"1994","journal-title":"Int. J. Ment. Health"},{"key":"ref50","doi-asserted-by":"publisher","first-page":"1403","DOI":"10.1016\/0277-9536(95)00112-K","article-title":"The World Health Organization quality of life assessment (WHOQOL): position paper from the World Health Organization","volume":"41","year":"1995","journal-title":"Soc. Sci. Med."},{"key":"ref51","volume-title":"Constitution of the World Health Organization","year":"2014"},{"key":"ref52","doi-asserted-by":"publisher","first-page":"201","DOI":"10.1080\/10705511.2017.1387859","article-title":"Testing factorial invariance with unbalanced samples","volume":"25","author":"Yoon","year":"2018","journal-title":"Struct. Equ. Model."}],"container-title":["Frontiers in Psychology"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fpsyg.2023.1305682\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,1,8]],"date-time":"2024-01-08T12:46:27Z","timestamp":1704717987000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fpsyg.2023.1305682\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,1,8]]},"references-count":52,"alternative-id":["10.3389\/fpsyg.2023.1305682"],"URL":"https:\/\/doi.org\/10.3389\/fpsyg.2023.1305682","relation":{},"ISSN":["1664-1078"],"issn-type":[{"value":"1664-1078","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,1,8]]},"article-number":"1305682"}}